Rule Standard 12V DC Submersible Bilge Pumps, 360-1100 GPH

The Rule Standard series is a family of submersible 12V DC bilge pumps built to clear rainwater, spray, and minor leaks from boats of every size. Available across flow rates from 360 GPH up to 1100 GPH, this line lets you match pump capacity to your bilge volume and expected water intake, from small runabouts to larger cruisers and workboats. Each pump uses a compact, low-profile housing that fits into tight bilge spaces and mounts directly to the hull with a standard Rule base, while a 3/4 inch hose barb (larger on higher-capacity models) connects to standard discharge hose.

Every pump in this range runs on 12V DC and includes a built-in thermal cut-off that shuts the motor down if it overheats, protecting both the pump and the boat's electrical system. A backflow-resistant discharge design reduces water left standing in the bilge after shutoff, cutting down on stagnant odors. These are manually operated (non-automatic) pumps, intended to be wired to a manual switch or panel rather than a float switch, giving the operator direct control over when the pump runs.

Specifications

• Brand: Rule
• Voltage: 12V DC
• Flow Rate Range: 360 GPH to 1100 GPH
• Pump Style: Standard (manually operated, non-automatic)
• Port Type: 3/4 inch to 1-1/8 inch hose barb depending on model
• Discharge Type: Threaded discharge
• Housing: Submersible, corrosion-resistant
• Thermal Protection: Built-in thermal cut-off

Sizes & Options

Choose your model based on the volume of water you need to move and your bilge size. The 24DA (360 GPH) and 25DA (500 GPH) suit smaller boats and general rainwater/spray duty, while the 20DA (800 GPH) and 27DA (1100 GPH) are built for larger bilges or higher water intake situations, such as bigger cruisers or auxiliary dewatering roles. All models share the same mounting footprint and wiring approach, so you can size up without changing your installation method.